Yes. Most float switches are, by definition, a simple apparatus. You can install a simple apparatus, like our Kari float switch, in a hazardous location as long as you're wiring intrinsically safe. In other words, the float switch has to be wired to an appropriate safety barrier or isolator. Additionally, our FS-400, FS-410, and FS-500 series float switches, as mentioned above, carry Class I, Division 1 Explosion Proof certifications.
For our more complex FL series, we have a Class 1, Div 1 certification on our FLX model.
Simple, buy a Kari float switch. It has up to 4 switches in a single float. So you can have a high and low switch point with a high and low alarm, or you can have 4 individual switching levels in a single float.
You can also get a Kari model with 1, 2, and 3 switches in them. They come in 19 different configurations - including built-in hysteresis - for multiple pump control and alarming applications.
